7.13Alarm Monitoring by DDE clients

A WebAccess DDE Server allows 3rd Party Software packages to monitor and Acknowledge alarms. Typical applications include pagers and telephone alarm monitoring. 

Applications typically access a DDE Server using the following convention:


= bwddexe|topic!tagname


WebAccess Server's application name: bwddexe

WebAccess Server's topic: topic

WebAccess Server's item: tagname

Tagname is the Tag you want, for example TIC101, ZT-106, speed, etc.

The DDE Client application must have access to the WebAccess SCADA node:  the DDE Client application must be running on the SCADA Node PC or have a Network DDE connection (NetDDE) to the SCADA node.